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Murakami, Masanori*; Park, J. M.*; Petty, C. C.*; Luce, T. C.*; Heidbrink, W. W.*; Osborne, T. H.*; Prater, R.*; Wade, M. R.*; Anderson, P. M.*; Austin, M. E.*; et al.
Nuclear Fusion, 49(6), p.065031_1 - 065031_8, 2009/06
Times Cited Count:45 Percentile:82.66(Physics, Fluids & Plasmas)Modification of the two existing DIII-D neutral beam lines is planned to allow vertical steering to provide off-axis neutral beam current drive (NBCD) peaked as far off-axis as half the plasma minor radius. New calculations for a downward-steered beam indicate strong current drive with good localization off-axis so long as the toroidal magnetic field, BT, and the plasma current, Ip, point in the same direction. This is due to good alignment of neutral beam injection (NBI) with the local pitch of the magnetic field lines. This model has been tested experimentally on DIII-D by an injecting equatorially-mounted NBs into reduced size plasmas that are vertically displaced with respect to the vessel midplane. The existence of off-axis NBCD is evident in the changes seen in sawtooth behavior in the internal inductance. By shifting the plasma upward or downward, or by changing the sign of the toroidal field, measured off-axis NBCD profiles measured with motional Stark effect data and internal loop voltage show a difference in amplitude (40%-45%) consistent with predicted differences predicted by the changed NBI alignment with respect to the helicity of the magnetic field lines. The effects of NB injection direction relative to field line helicity can be large even in ITER: off-axis NBCD can be increased by more than 20% if the BT direction is reversed. Modification of the DIII-D NB system will strongly support scenario development for ITER and future tokamaks as well as providing flexible scientific tools for understanding transport, energetic particles and heating and current drive.
Callen, J. D.*; Anderson, J. K.*; Arlen, T. C.*; Bateman, G.*; Budny, R. V.*; Fujita, Takaaki; Greenfield, C. M.*; Greenwald, M.*; Groebner, R. J.*; Hill, D. N.*; et al.
Nuclear Fusion, 47(11), p.1449 - 1457, 2007/11
Times Cited Count:7 Percentile:25.22(Physics, Fluids & Plasmas)no abstracts in English
Heffner, R. H.; Morris, G. D.*; Fluss, M. J.*; Chung, B.*; MacLaughlin, D. E.*; Shu, L.*; Anderson, J. E.*
Physica B; Condensed Matter, 374-375, p.163 - 166, 2006/03
Times Cited Count:8 Percentile:37.51(Physics, Condensed Matter)The SR measurements in pulutonium metals are reported for the first time. The ground-state properties of Pu metal is not understood clearly. We found the upper limits of the ordered moment in
-Pu and
-stabilized Pu is
at
4K.
Morris, G. D.*; Heffner, R. H.; Bauer, E. D.*; Morales, L. A.*; Sarrao, J. L.*; Fluss, M. J.*; MacLaughlin, D. E.*; Shu, L.*; Anderson, J. E.*
Physica B; Condensed Matter, 374-375, p.180 - 183, 2006/03
Times Cited Count:15 Percentile:55.36(Physics, Condensed Matter)MacLaughlin, D. E.*; Rose, M. S.*; Anderson, J. E.*; Shu, L.*; Heffner, R. H.; Kimura, Tsuyoshi*; Morris, G. D.*; Bernal, O. O.*
Physica B; Condensed Matter, 374-375, p.142 - 144, 2006/03
Times Cited Count:3 Percentile:17.23(Physics, Condensed Matter)Longitudinal-field muon spin relaxation experiments have been carried out in the paramagnetic state of single-crystal GdTi
O
just above the phase transition. At high applied fields the relaxation time is proportional to field. At low fields the relaxation rate increases markedly as the freezing temperature is approached. This behavior is consistent with the very long autocorrelation function cutoff time.
MacLaughlin, D. E.*; Rose, M. S.*; Anderson, J. E.*; Bernal, O. O.*; Heffner, R. H.; Nieuwenhuys, G. J.*; Baumbach, R. E.*; Butch, N. P.*; Maple, M. B.*
Physica B; Condensed Matter, 374-375, p.177 - 179, 2006/03
Times Cited Count:1 Percentile:6.20(Physics, Condensed Matter)Longitudinal-field SR experiments have been performed in unannealed and annealed samples of the heavy-fermion compound UCu
Pd to study the effect of disorder on non-Fermi liquid behavior in this material. The observed scaling exponent independent of annealing. Annealed samples exhibited a reduction of the relaxation rate at low temperatures, indicating that annealing shifts fluctuation noise power to higher frequencies. There was no tendency of the inhomogeneous spread in rates to decrease with annealing. The correlation with residual resistivity previously observed for a number of NFL heavy-electron materials is also found in the present work.
MacLaughlin, D. E.*; Shu, L.*; Anderson, J. E.*; Heffner, R. H.; Morris, G. D.*; Bernal, O. O.*; Kim, J. S.*; Stewart, G. R.*
Physica B; Condensed Matter, 378-380, p.144 - 145, 2006/02
Times Cited Count:0 Percentile:0.00(Physics, Condensed Matter)Shu, L.*; MacLaughlin, D. E.*; Heffner, R. H.; Callaghan, F. D.*; Sonier, J. E.*; Morris, G. D.*; Bernal, O. O.*; Bosse, A.*; Anderson, J. E.*; Yuhasz, W. M.*; et al.
Physica B; Condensed Matter, 374-375, p.247 - 250, 2006/01
Times Cited Count:6 Percentile:30.32(Physics, Condensed Matter)Hayashi, Takumi; Yamada, Masayuki; Konishi, Satoshi; Matsuda, Yuji; Okuno, Kenji; J.E.Nasise*; R.S.Dahlin*; Anderson, J. L.*
Fusion Engineering and Design, 28, p.357 - 361, 1995/00
Times Cited Count:11 Percentile:71.38(Nuclear Science & Technology)no abstracts in English
Konishi, Satoshi; Yamanishi, Toshihiko; Enoeda, Mikio; Hayashi, Takumi; Ohira, Shigeru; Yamada, Masayuki; Suzuki, Takumi; Okuno, Kenji; Sherman, R. H.*; Willms, R. S.*; et al.
Fusion Engineering and Design, 28, p.258 - 264, 1995/00
Times Cited Count:4 Percentile:42.92(Nuclear Science & Technology)no abstracts in English
Konishi, Satoshi; Yoshida, Hiroshi; Naruse, Yuji; K.E.Binning*; R.V.Carlson*; Bartlit, J. R.*; Anderson, J. L.*
JAERI-M 93-090, 21 Pages, 1993/03
no abstracts in English
Hayashi, Takumi; Nakamura, Hirofumi; Konishi, Satoshi; Inoue, Masahiko*; Hirata, Kazuhiro*; Okuno, Kenji; Naruse, Yuji; Anderson, J. L.*; Sherman, R. H.*; Willms, R. S.*; et al.
JAERI-M 93-083, 54 Pages, 1993/03
no abstracts in English
Hayashi, Takumi; Nakamura, Hirofumi; Konishi, Satoshi; Yamanishi, Toshihiko; Inoue, Masahiko*; Hirata, Kazuhiro*; Okuno, Kenji; Naruse, Yuji; Anderson, J. L.*; Barnes, J. W.*; et al.
JAERI-M 93-081, 35 Pages, 1993/03
no abstracts in English
Okuno, Kenji; Enoeda, Mikio; ; ; Yoshida, Hiroshi; Naruse, Yuji; Anderson, J. L.*; Bartlit, J. R.*; Sherman, R. H.*; R.V.Carlson*; et al.
JAERI-M 90-028, 73 Pages, 1990/02
no abstracts in English
Yoshida, Hiroshi; ; Hirata, Shingo*; Yamanishi, Toshihiko; ; Anderson, J. L.*; Bartlit, J. R.*; C.R.Walthers*; Sherman, R. H.*; D.O.Coffin*; et al.
JAERI-M 88-242, 73 Pages, 1988/12
no abstracts in English